CN107631919B - N2Laterite-like material and preparation method thereof - Google Patents
N2Laterite-like material and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000006004 Quartz sand Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920002545 silicone oil Polymers 0.000 claims abstract description 16
- 239000000440 bentonite Substances 0.000 claims abstract description 15
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 15
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229940099259 vaseline Drugs 0.000 claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 12
- 239000010440 gypsum Substances 0.000 claims abstract description 11
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims description 33
- 239000004576 sand Substances 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 6
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 claims 1
- 229940083037 simethicone Drugs 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 11
- 229910001710 laterite Inorganic materials 0.000 abstract description 9
- 239000011504 laterite Substances 0.000 abstract description 9
- 239000002689 soil Substances 0.000 abstract description 7
- 238000005065 mining Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract 1
- 239000002639 bone cement Substances 0.000 description 18
- 230000006872 improvement Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 5
- 239000004927 clay Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 239000004264 Petrolatum Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229940066842 petrolatum Drugs 0.000 description 3
- 235000019271 petrolatum Nutrition 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 241000425347 Phyla <beetle> Species 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- -1 tailing Chemical compound 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a N2A laterite similar material and a preparation method thereof belong to the technical field of geotechnical engineering similar materials, the similar material is prepared from aggregate, cement and a regulator, the mass ratio of the aggregate to the cement is 5:1-8:1, and the regulator accounts for 15% -16% of the total mass of the similar material; the aggregate comprises bentonite and quartz sand; the cement comprises vaseline, silicone oil and gypsum; the regulator is water. The invention takes the expansion rate, the compressive strength and the cohesive force as the measurement indexes, can realize the matching requirements of the similar material on the expansion rate of 50 percent to 190 percent, the compressive strength of 13kPa to 55kPa and the cohesive force of 22kPa to 41kPa, can accurately meet the most main mechanical parameter requirements of model tests, and can well simulate N2The red soil or soil with similar properties is cracked under the influence of mining, and the cracks are automatically closed after meeting water.
Description
Technical Field
The invention relates to a method for producing N2A laterite similar material and a preparation method thereof, belonging to the technical field of geotechnical engineering similar materials.
Background
The energy resource enrichment region of the northern Shaanxi, which is called energy 'golden triangle', is a desertification region of arid and semi-arid land, and has shortage of water resources and weak ecological environment, and the total amount of mine water loss in China is counted to be 4.96 × 109the t/a, the main loss form of which is the evaporation of mine water discharged to the earth surface, is particularly prominent in the area. The fourth system of the area renews the sand layer diving aquifer (Q)3The water-bearing stratum of Sarausu, the middle to strong water-bearing capacity), the runoff water of gullies, shallow surface water of lakes (seas) and the like is a precious water resource for maintaining the balance of industrial and agricultural development, drinking water and ecological environment in northwest arid-semiarid regions. The widespread development of the new phyla above the coal bed of Jurassic system in Shanxi provinceN2The red clay layer has strong plasticity, no crack and good water-resisting property, so the red clay layer is a good relative water-resisting layer and plays an important role in water resisting and water retaining in mining.
With the continuous expansion of the exploitation scale of western coal resources in China, the exploitation water burst of the Jurassic coal seam and the secondary geological disasters induced by the water burst are increasingly serious, the influence range is continuously expanded, and the method has important influence on regional economy and social development. The laboratory-based simulation test is an important means for researching the problems, and the proportion and the correct selection of similar materials are important factors for ensuring the accuracy of the model test.
N2Laterite is low liquid limit clay or powdery clay with hard plasticity, saturation, low compressibility, weak water permeability and medium expansion, and can play a role in obviously inhibiting the development of the height of two zones, wherein the properties of weak water permeability, extremely weak water permeability and expansion are important properties, and in addition, the following requirements are also met:
the main mechanical properties of similar materials are similar to the structure of a simulated rock-soil layer;
the mechanical property of the material is stable and is not easily influenced by external conditions;
changing the proportion of the material can change the mechanical property of the material to adapt to the requirements of similar conditions;
fourthly, the forming is easy, the manufacturing is convenient, and the setting time is short;
wide material source and low cost.
The main materials of the model test commonly used in China at present comprise barite powder, sand, gypsum, coated iron powder, copper powder and the like, the commonly used cementing agents comprise engine oil, paraffin oil, rosin and the like, and zinc powder, iron powder, lead powder, quartz sand, tailing, bentonite, diatomite, kaolin powder and the like can also be added as auxiliary materials.
Disclosure of Invention
In view of the problems of the prior art, the present invention provides a method for producing N2The laterite-like material and the preparation method thereof can meet the requirement of similar physical and mechanical properties.
To make it practicalIn order to achieve the above object, the present invention employs N2The laterite-like material is prepared from aggregate, cementing agent and regulator, the mass ratio of the aggregate to the cementing agent is 5:1-8:1, and the regulator accounts for 15% -16% of the total mass of the laterite-like material;
the aggregate comprises bentonite and quartz sand; the cement comprises vaseline, silicone oil and gypsum; the regulator is water.
As an improvement, the mass ratio of bentonite to quartz sand in the aggregate is 1:2-1: 8.
As an improvement, the mass ratio of the vaseline to the silicone oil in the cement is 1:1-4:1, and the gypsum accounts for 0-9% of the total mass of the similar material.
As an improvement, the bentonite is nano bentonite, the quartz sand is quartz sand which is not larger than 32 meshes and has good roundness, the vaseline is industrial vaseline, and the silicone oil is dimethyl silicone oil.
In addition, the invention also provides N2The preparation method of the laterite-like material comprises the steps of firstly determining N2The laterite similar material mechanical parameters are determined, then the proportion of each raw material in the similar material is determined according to the relation between the soil-sand ratio and the expansion rate, the relation between the soil-sand ratio and the compressive strength and the relation between the soil-sand ratio and the cohesive force, finally a certain amount of each raw material is weighed according to the determined proportion, the raw materials are put into a stirrer to be uniformly stirred, then water is added to the mixture to be continuously stirred, and N is obtained2Laterite-like materials.
As an improvement, the method specifically comprises the following steps:
step one, determining the mechanical parameters, the size and the similar model size of the actual stratum according to the stratum columnar data, and determining the mechanical parameters of similar materials according to a similar theory, wherein the method specifically comprises the following steps:
(1) determining a similar scale according to a similar theory
Geometric similarity ratio: cL＝LH/LM；
Time similarity ratio:
volume-weight similarity ratio: cγ＝γH/γM；
In the formula, LH、LM、tH、tM、γH、γMRespectively representing the prototype generalized length, the model generalized length, the time required by prototype motion, the time required by model motion, the prototype volume weight and the model volume weight;
(2) determining parameters of similar materials
Compressive strength of similar materials: sigmaM＝σH/(Cr·CL)；
Cohesion of similar materials: cM＝CH/(Cr·CL)；
Similar material expansion ratio: dM＝DH；
In the formula, σH、CH、DHRespectively the compressive strength, cohesive force and expansion rate of the prototype;
secondly, determining the proportion of each raw material in the similar material according to the mechanical parameters of the similar material determined in the first step and the relation between the soil-sand ratio and the expansion rate, the relation between the soil-sand ratio and the compressive strength and the relation between the soil-sand ratio and the cohesive force;
step three, weighing a certain amount of raw materials according to the raw material proportion determined in the step two, putting the raw materials into a stirrer, uniformly stirring the raw materials, adding water, and continuously stirring the raw materials to obtain N2Laterite-like materials.
Compared with other similar materials, the invention has the following advantages:
1) the similar materials prepared according to the proportioning scheme of the invention can accurately meet the most main mechanical parameter requirements of model tests and obtain results closest to the actual results.
2) The bentonite adopted by the invention has low permeability, low diffusivity, strong expansibility, strong self-sealing property and strong self-healing capability, and the silicone oil has higher viscosity and good sealing property, and can well simulate N2The red soil is cracked under the influence of mining and has important water physical properties of automatically closing cracks after meeting water, thereby verifying the weight of the red soil as a good relative water-resisting layer in 'water-retaining mining' in northern ShaanxiIt has important effect.
3) The similar material prepared by the invention can rapidly determine the proportion of the similar material through a soil-sand ratio, a bone-cement ratio and expansion rate relation chart, a soil-sand ratio, a bone-cement ratio and compressive strength relation chart and a soil-sand ratio, a bone-cement ratio and cohesive force relation chart, can obviously reduce the workload and improve the efficiency.
4) The similar material proportion provided by the invention has the advantages that the expansion rate variation range is 50-190%, the compressive strength variation range is 13-55 kPa, the cohesive force variation range is 22-41 kPa, the parameter variation range is wide, and the similar material proportion is suitable for preparing similar materials with similar properties including laterite.
5) The materials used in the invention are nontoxic and harmless, have low price, are convenient to obtain and are easy to popularize.
Drawings
FIG. 1 is a graph showing the relationship between sand-soil ratio, bone-cement ratio and expansion rate of similar materials according to the present invention;
FIG. 2 is a graph showing the relationship between the sand-soil ratio, the bone-cement ratio and the compressive strength of similar materials according to the present invention;
FIG. 3 is a graph showing the relationship between the soil-sand ratio, the bone-cement ratio and the cohesion of similar materials of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
N2The laterite-like material is prepared from aggregate, cementing agent and regulator, the mass ratio of the aggregate to the cementing agent is 5:1-8:1, and the regulator accounts for 15% -16% of the total mass of the laterite-like material;
the aggregate comprises bentonite and quartz sand; the cement comprises vaseline, silicone oil and gypsum; the regulator is water.
As an improvement of the embodiment, the mass ratio of the bentonite to the quartz sand in the aggregate is 1:2-1: 8.
As an improvement of the embodiment, the mass ratio of the vaseline to the silicone oil in the cement is 1:1-4:1, and the gypsum accounts for 0-9% of the total mass of the similar materials.
As an improvement of the embodiment, the bentonite is nano bentonite, the quartz sand is quartz sand which is not larger than 32 meshes and has good roundness, the vaseline is industrial vaseline, and the silicone oil is dimethyl silicone oil.
N2The preparation method of the laterite-like material comprises the steps of firstly determining N2The laterite similar material mechanical parameters are determined, then the proportion of each raw material in the similar material is determined according to the relation between the soil-sand ratio and the expansion rate, the relation between the soil-sand ratio and the compressive strength and the relation between the soil-sand ratio and the cohesive force, finally a certain amount of each raw material is weighed according to the determined proportion, the raw materials are put into a stirrer to be uniformly stirred, then water is added to the mixture to be continuously stirred, and N is obtained2Laterite-like materials.
As a further improvement of the embodiment, the preparation method specifically comprises the steps of:
step one, determining the mechanical parameters, the size and the similar model size of the actual stratum according to the stratum columnar data, and determining the mechanical parameters of similar materials according to a similar theory, wherein the method specifically comprises the following steps:
(1) determining a similar scale according to a similar theory
Geometric similarity ratio: cL＝LH/LM；
Time similarity ratio:
volume-weight similarity ratio: cγ＝γH/γM；
In the formula, LH、LM、tH、tM、γH、γMAre respectively provided withThe model is a prototype generalized length, a model generalized length, time required by prototype motion, time required by model motion, prototype volume weight and model volume weight;
(2) determining parameters of similar materials
Compressive strength of similar materials: sigmaM＝σH/(Cr·CL)；
Cohesion of similar materials: cM＝CH/(Cr·CL)；
Similar material expansion ratio: dM＝DH；
In the formula, σH、CH、DHRespectively the compressive strength, cohesive force and expansion rate of the prototype;
secondly, determining the proportion of each raw material in the similar material according to the mechanical parameters of the similar material determined in the first step and according to a relation graph (shown as a figure 1) of the soil-sand ratio and the expansion rate, a relation graph (shown as a figure 2) of the soil-sand ratio and the compressive strength and a relation graph (shown as a figure 3) of the soil-sand ratio and the cohesive force;
step three, weighing a certain amount of raw materials according to the raw material proportion determined in the step two, putting the raw materials into a stirrer, uniformly stirring the raw materials, adding water, and continuously stirring the raw materials to obtain N2Laterite-like materials.
Example 1
In northern Shaanxi region N2The preparation method of the laterite similar material is illustrated by way of example and comprises the following steps:
1) collecting prototype stratum data and mechanical parameters, and determining the geometric ratio C of the model by using the existing 2500mm × 1500mm × 300mm simulation test bed in the laboratory based on the research objects and the test conditions L200, volume to weight ratio CγDetermining model mechanical parameters as 1.0: the expansion rate is 80 percent, the compressive strength is 56.5kPa, and the cohesive force is 30 kPa;
2) according to the parameters of the expansion rate, the compressive strength and the cohesive force determined in the previous step, according to a relation graph (figure 1) of the soil-sand ratio, the bone-cement ratio and the expansion rate, a relation graph (figure 2) of the soil-sand ratio, the bone-cement ratio and the compressive strength and a relation graph (figure 3) of the soil-sand ratio, the bone-cement ratio and the cohesive force, the proportion of each component in the similar material is comprehensively determined as follows: petrolatum to silicone oil 2: 1, soil-sand ratio (bentonite-quartz sand) 1: bone cement ratio (aggregate to cement) 8:1, gypsum accounts for 9 percent of the total mass, and water accounts for 15 percent of the total mass;
3) weighing a certain amount of the raw materials according to the proportion determined in the previous step, putting the raw materials into a stirrer, uniformly stirring the raw materials, adding water, and continuously stirring the mixture to obtain N2Laterite-like materials.
Example 2
Region N of Qingyang in Gansu province2The preparation method of the laterite similar material is illustrated by way of example and comprises the following steps:
1) collecting prototype stratum data and mechanical parameters, and determining the geometric ratio C of the model by using the existing 2500mm × 1500mm × 300mm simulation test bed in the laboratory based on the research objects and the test conditions L200, volume to weight ratio CγDetermining model mechanical parameters as 1.0: the expansion rate is 130 percent, the compressive strength is 22.5kPa, and the cohesive force is 35.8 kPa;
2) according to the parameters of the expansion rate, the compressive strength and the cohesive force determined in the previous step, according to a relation graph (figure 1) of the soil-sand ratio, the bone-cement ratio and the expansion rate, a relation graph (figure 2) of the soil-sand ratio, the bone-cement ratio and the compressive strength and a relation graph (figure 3) of the soil-sand ratio, the bone-cement ratio and the cohesive force, the proportion of each component in the similar material is comprehensively determined as follows: petrolatum to silicone oil 4:1, soil-sand ratio (bentonite-quartz sand) 1: bone cement ratio (aggregate to cement) 6: 1, gypsum accounts for 3 percent of the total mass, and water accounts for 15 percent of the total mass;
3) weighing a certain amount of raw materials according to the proportion determined in the previous step, putting the raw materials into a stirrer, uniformly stirring the raw materials, adding water, and continuously stirring the mixture to obtain the soil-like material with strong expansibility.
Example 3
Region with Shanxi Shilou N2The preparation method of the laterite similar material is illustrated by way of example and comprises the following steps:
1) collecting prototype stratum data and mechanical parameters, and determining the geometric ratio C of the model by using the existing 2500mm × 1500mm × 300mm simulation test bed in the laboratory based on the research objects and the test conditionsL200 g, cWeight ratio CγDetermining model mechanical parameters as 1.0: the expansion rate is 40 percent, the compressive strength is 58.5kPa, and the cohesive force is 22.5 kPa;
2) according to the parameters of the expansion rate, the compressive strength and the cohesive force determined in the previous step, according to a relation graph (figure 1) of the soil-sand ratio, the bone-cement ratio and the expansion rate, a relation graph (figure 2) of the soil-sand ratio, the bone-cement ratio and the compressive strength and a relation graph (figure 3) of the soil-sand ratio, the bone-cement ratio and the cohesive force, the proportion of each component in the similar material is comprehensively determined as follows: petrolatum to silicone oil 1:1, soil-sand ratio (bentonite-quartz sand) 1: bone cement ratio (aggregate to cement) 8:1, gypsum accounts for 9 percent of the total mass, and water accounts for 15 percent of the total mass;
3) weighing a certain amount of the raw materials according to the proportion determined in the previous step, putting the raw materials into a stirrer, uniformly stirring the raw materials, adding water, and continuously stirring the mixture to obtain N2Laterite-like materials.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. N2The laterite-like material is characterized by being prepared from an aggregate, a cementing agent and a regulator, wherein the mass ratio of the aggregate to the cementing agent is 5:1-8:1, and the regulator accounts for 15-16% of the total mass of the laterite-like material;
the aggregate comprises bentonite and quartz sand; the cement comprises vaseline, silicone oil and gypsum; the regulator is water;
N2the preparation method of the laterite-like material specifically comprises the following steps:
step one, determining the mechanical parameters, the size and the similar model size of the actual stratum according to the stratum columnar data, and determining the mechanical parameters of similar materials according to a similar theory, wherein the method specifically comprises the following steps:
(1) determining a similar scale according to a similar theory
Geometric similarity ratio: cL＝LH/LM；
Time similarity ratio:
volume-weight similarity ratio: cγ＝γH/γM；
In the formula, LH、LM、tH、tM、γH、γMRespectively representing the prototype generalized length, the model generalized length, the time required by prototype motion, the time required by model motion, the prototype volume weight and the model volume weight;
(2) determining parameters of similar materials
Compressive strength of similar materials: sigmaM＝σH/(Cr·CL)；
Cohesion of similar materials: cM＝CH/(Cr·CL)；
Similar material expansion ratio: dM＝DH；
In the formula, σH、CH、DHRespectively the compressive strength, cohesive force and expansion rate of the prototype;
secondly, determining the proportion of each raw material in the similar material according to the mechanical parameters of the similar material determined in the first step and the relation between the soil-sand ratio and the expansion rate, the relation between the soil-sand ratio and the compressive strength and the relation between the soil-sand ratio and the cohesive force;
step three, weighing a certain amount of raw materials according to the raw material proportion determined in the step two, putting the raw materials into a stirrer, uniformly stirring the raw materials, adding water, and continuously stirring the raw materials to obtain N2Laterite-like materials.
2. A process according to claim 12The laterite-like material is characterized in that the mass ratio of bentonite to quartz sand in the aggregate is 1:2-1: 8.
3. A process according to claim 12The laterite-like material is characterized in that the mass ratio of vaseline to silicone oil in the cement is 1:1-4:1, and the gypsum accounts for the total mass of the similar material0％-9％。
4. A process according to claim 12The laterite-like material is characterized in that bentonite is nano bentonite, quartz sand with a fineness of not more than 32 meshes and good roundness is adopted, vaseline is industrial vaseline, and silicone oil is simethicone.
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